Artificial stone



Sept. 28, 1

J. J. VlCENZl ARTIFICIAL STONE Filed Jan. 2, 1937 Patented Sept. 2s, 1937 UNITED STATES ARTIFICIAL STONE John J. Vicenzi, Boston, Mass.

Application January 2,

5 Claims.

My invention relates to artificial stone, and more especially to artificial stone such as is used within buildings for walls, ceilings, floors, partitions and the like.

The object o f my invention is to provide an improved articial stone of the character described "which will be comparatively inexpensive and which will be light, strong, substantially soundproof and also Waterproof.

To these ends I have provided, as a new article of manufacture, an artificial stone tile product having the features of construction and distinguishing characteristics set forth in the following description, the several features of the invention being separately pointed out and defined in the claims at the close thereof.

In the accompanying drawing:-

Figure 1 is a top plan view of a tile embodying one form of my invention, and

Figure 2 is an edge view, partly in section, of the tile shown in Fig. 1.

Figure 3 illustrates an alternative construction.

My new articial stone is essentially embodied in a composite laminated tile structure comprising at least one outer exposed layer II which may be plain cement, magnesite or the like, but which as shown, is preferably terrazzo, the latter being ornamental and susceptible of being highly polished upon its exposed side, and also comprising an inner layer I2 of fiber-board such, for example, as the well known Celotex.

In the drawings I have embodied my invention in a tile suitable for use upon a concrete or other base to form a floor or wall, a multiplicity of such tiles being laid edge to edge to provide a light, durable and ornamental structure that is substantially soundproof.

This tile comprises a rectangular cement or concrete frame I8 having relatively perpendicular cross-bars I9 which divide its interior into four rectangular compartments. Each compartment is occupied by a laminated filling comprising a bottom layer I1 of metallic reinforcing material such as a wire fabric; a layer I6 of asphalt or the like which may be applied when the tile is laid; a layer I2 of fiberboard; a layer I5 of asphalt or the like; a layer I3 of metallic reinforcing material such as a wire fabric, and a layer 2| consisting of a mixture of cement and particles of expanded and baked clay which latter is a granular product now on the market and known commercially as Haydite. It is used in lieu of sand with cement to produce concrete because of its light weight which is about one-half that of cement or sand.

1937, serial N0. 118,840

Over the top of the several laminated llings within the frame I8, and over the top of the latter also if desired, is spread a thin layer of terrazzo I I whose'top side is ground smooth and polished.

In practice the finished tile may measure three feet by three feet with the bars of the frame made one and one-half inches wide as viewed in Fig. 1. Thus the layers I2 and 2l constitute the major portion of the tile and consequently the latter is desirablyv light in weight and substantially soundproof.

This construction provides a very strong, durable, light and ornamental tile requiring merely a thin veneer-like surfacing of terrazzo which consists of crushed stone and cement and is of itself comparatively expensive and heavy.

This tile is comparatively inexpensive, substantially waterproof, and sound-proof to a marked degree owing to the cushioning effect of the fiberboard layer I2. Furthermore, when the outer layer II is made from terrazzo or the like, and particularly when the exposed face of said outer layer is polished, the structure is ornamentally attractive. It also has the advantage that tiles of this kind can be produced as a new article of manufacture so that walls, partitions, floors and the like can be quickly installed Within a building. If desired, both sides of the tile may include outside layers II and Ila, of terrazzo or cement as shown in Fig. 3.

What I claim is:

1. As anew article of manufacture, an artificial stone tile product comprising a frame of hardened cement defining a chamber, and a laminated structure lling said chamber including an inner imperforate cushioning layer of fiberboard; a perforate metallic reinforcement embedded within said structure upon the outer side of said inner cushioning layer; an outer hard layer of cement, and fastening means connecting said inner cushioning berboard layer with said metallic reinforcement layer.

2. As a new article of manufacture, an artificial stone tile product comprising a frame of g hardened cement defining a chamber, and a laminated structure filling said chamber including an outer hard layer of cement; an inner imperforate cushioning layer of berboard; a perforate metallic reinforcement embedded within said structure upon the outer side of said inner cushioning layer of fiberboard; a perforate metallic reinforcement upon the innermost side of said cushioning layer of berboard, and fas-l tening means extending through said cushioning layer of berboard for connecting said two metallic reinforcements therewith.

3. As a new article of manufacture, an artiicial stone tile product comprising a frame of hardened cement defining a chamber; a laminated structure lling said chamber including an outer hard layer of cement; an imperforate inner cushioning and insulating layer of berboard; a perforate metallic reinforcement embedded within said outer layer; a thin layer of terrazzo covering said frame and the outer layer of said laminated structure, and fastening means connecting said inner cushioning berboard layer with said metallic reinforcement layer.

4. As a new article of manufacture, a tile comprising an isogonal marginal cement frame consisting of a plurality of narrow side-bars; an imperforate cushioning layer of berboard within said frame whose edges are entirely surrounded by the latter; two layers of waterproof material covering the opposite faces of said berboard; a perforate metallic reinforcement layer embedded in the outermost one of said layers of waterproof material; means positively fastening said metallic reinforcement layer to said cushioning layer of berboard, and a layer of cement directly covering said outermost layer of reinforcement material, the cuter surfacev of said last mentioned cement layer being flush with the outer surface of said frame.

5. As a new article of manufacture, a tile comprising an isogonal marginal cement frame consisting of a plurality of narrow side-bars; an imperforate cushioning layer of iiberboard within said frame whose edges are entirely surrounded by the latter; two layers of waterproof material covering the opposite faces of said fiberboard; two perforate metallic reinforcement layers within said frame each embedded in one of said layers of waterproof material; means positively fastening said two metallic reinforcement layers together and to said cushioning layer of berboard; a layer of cement within said frame covering the outermost layer of reinforcement material whereof the outer surface is flush with the outer surface of Asaid frame, and a relatively thin layer of ornamental terrazzo covering the outer surface of said layer of cement and also the contiguous outer surface of said frame.

JOHN J. VICENZI. 

